Publications Grant Williams

G. V. M. Williams, J. Kennedy, P. P. Murmu, and Sergy Rubanov, “Structural and magnetic properties of near surface superparamagnetic Ni_1-xFe_x nanoparticles in SiO₂ formed by low energy dual ion implantation with different fluences”, Appl. Surf. Sci. (in press).

J. Kennedy, P.P. Murmu, J. Leveneur, G.V.M. Williams, R.L. Moody, T. Maity, S.V. Chong, “Enhanced power factors and increased conductivity of aluminium doped zinc oxide thin films for thermoelectric applications”, Journal of Nanoscience and Nanotechnology 18, 1384-1387 (2018).

J. J. Schuyt and G. V. M. Williams, “Photoluminescence, radioluminescence and optically stimulated luminescence study of NaMgF₃(Mn): observation of a F-centre Mn complex”, J. Lumin. 122, 063107-1 063107-6 (2017).

P. Gupta, G. V. M. Williams, R. Hübner, S. Vajandar, T. Osipowicz, K. -H. Heinig. H. -W. Becker, and A. Markwitz, “Self-assembly of magnetic nanoclusters in diamond-like carbon by diffusion processes enhanced by collision cascades”, Appl. Phys. Lett. 110, 141901-1 141901-5 (2017).

G. V. M. Williams, T. Prakash, and J. Kennedy, “The effect of fluence on the magnetic properties of superparamagnetic iron-nickel nanoparticles in SiO₂ made by dual Ni and Fe low energy ion implantation”, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 409, 187-191 (2017).

P. Gupta, G. V. M. Williams, S. Vajandar, T. Osipowicz, H. -W. Becker, K. -H. Heining, R. Heuber, J. Leveneur, J. Kennedy, and A. Markwitz, “Positioning of cobalt atoms in amorphous carbon films by pre-selecting the hydrogen concentration”, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 409, 116-120 (2017).

I. I. Farrell, A. R. Hyndman, R. J Reeves, G. V. M. Williams, S. Granville "Growth and characterisation of Ba₂FeMoO₆ thin films by pulsed laser deposition", Thin Solid Films 625, 24 (2017).

G. V. M. Williams and J. Stephen, "Magnetothermopower in A_2-xLa_xFeMoO₆ (A=Sr,Ba)" Advances in Condensed Matter Physics 2017, Article ID 7579030 (2017). https://doi.org/10.1155/2017/7578930

Michael Jurkutat, Jonas Kohlrautz, Steven Reichardt, Andreas Erb, Grant Williams, and Jürgen Haase, “NMR of cuprate superconductors: recent development” in “High-Tc Copper Oxide Superconductors and Related Novel Materials” edited by Annette Bussmann-Holder, Hugo Keller, and Antonio Bianconi, Springer Series in Materials Science 255 (Springer International Publishing AG, 2017) ISBN 978-3-319-52675-1.

P. Gupta, H. -W. Becker, G. V. M. Williams, R. Hübner, K. -H. Heinig, and A. Markwitz, “Collision cascades enhanced hydrogen redistribution in cobalt implanted hydrogenated diamond-like carbon films”, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 394, 6 (2017).

P. Couture, G. V. M. Williams, J. Kennedy, J. Leveneur, P. P. Murmu, S. V. Chong, and S. Rubanov, "Nanocrystalline multiferroic BiFeO₃ thin films made by room temperature sputtering and thermal annealing, and formation of an iron oxide-induced exchange bias", Journal of Alloys and Compounds 695, 3061 (2017).

P. Couture, G. V. M. Williams, J. Kennedy, J. Leveneur, P. P.Murmu, S. V. Chong, and S. Rubanov, "Multiferroic nanocrystalline BiFeO₃ and BiCrO₃ thin films prepared by ion beam sputtering", International Journal of Nanotechnology 14, 56-65 (2017).

S. Sambale, G. V. M. Williams, S. V. Chong, "Probing the spin-glass and magnetoresistance in FeSr₂Y_1.7Ce_0.3Cu₂O_10-δ" Int. J. Nanotechnology 14, 367-374 (2017).

T. Prakash, G. V. M. Williams, J. Kennedy, "Synthesis of magnetic nanoparticles by low-energy dual ion implantation of iron and nickel into silicon dioxide followed by electron beam annealing" Int. J. Nanotechnology 14, 348-355 (2017).

P. Gupta, G. V. M. Williams, A. Markwitz, "Ferromagnetism in a diamond-like carbon film after nickel implantation", Int. J. Nanotechnology 14, 100-107 (2017).

J. Donaldson and G. V. M. Williams, "A luminescence study of NaMgF3:Dy³⁺ and NaMgF3:Nd³⁺ for application in radiation dosimetry", Int. J. Nanotechnology 14, 558-565 (2017).

T. Prakash, G. V. M. Williams, J. Kennedy, and S. Rubanov "Ni_1-xFe_x nanoparticles made by low energy dual ion implantation into SiO₂" Mat. Res. Express 3, 126102 (2016).

T. Prakash, G. V. M. Williams, J. Kennedy, and S. Rubanov "High spin-dependent tunneling magnetoresistance in magnetite powders made by arc-discharge", J. Appl. Phys. 120, 123905 (2016).

G. V. M. Williams, Ayla, My. T. T. Do, S. G. Raymond, M. Ashraf, M. D. H. Bhuiyan, and A. J. Kay, “Optical Modulation of the Diffraction Efficiency in an Indoline Azobenzene/Amorphous Polycarbonate Film”, Nanoscale Res. Lett. 11, 331 (2016).

S. V. Chong, G. V. M. Williams, and R. L. Moody, "The effect of manganese intercalation into Bi₂Se₃ on the thermal, electrical transport and magnetic properties", Journal of Alloys and Compounds686, 245 (2016).

Nataliya M. Georgieva, Damian Rybicki, Robin Guehne, Grant V. M. Williams, Shen V. Chong, Kazuo Kadowaki, Ion Garate, and Juergen Haase, "⁷⁷Se nuclear magnetic resonance of topological insulator Bi₂Se₃", Phys. Rev. B 93, 195120 (2016).

T. Prakash, G. V. M. Williams, J. Kennedy, and S. Rubanov, "Formation of magnetic nanoparticles by low energy dual implantation of Ni and Fe into SiO₂", Journal of Alloys and Compounds 667, 255 (2016).

J. Donaldson and G. V. M. Williams, "Photoluminescence, radioluminescence, and thermoluminescence in NaMgF₃ activated with Ni²⁺ and Er³⁺", J. Lumin. 173, 279 (2016).

P. Gupta, G. V. M. Williams, and A. Markwitz, "Ferromagnetic order in diamond-like carbon films by Co implantation", Journal of Physics D: Applied Physics 49, 055002 (2016).

S. Sambale, G. V. M. Williams, and S. V. Chong, "The effect of oxygen content on the magnetic and transport properties of FeSr₂Y_1.5Ce_0.5Cu₂O_8+x", Physica B 487, 68 (2016).

Peter P. Murmu, John Kennedy, Tushara Prakash, Grant V.M. Williams, Jérôme Leveneur, Shen V. Chong, "Synthesis and compositional analysis of permalloy powder prepared by arc-discharge", J. Nanosci. Nanotechnol. 15, 9612-9616 (2015).

G. V. M. Williams, My. T. T. Do, S. G. Raymond, M. Ashraf, M. D. H. Bhuiyan, and A. J. Kay, “Optically switchable diffraction gratings in a photochromic/polymer thin film”, Applied Optics 54, 6882 (2015).

Y. Kutuvantavida, G.V. M. Williams, M. D. H. Bhuiyan, S. G. Raymond, and A. J. Kay, "Effects of chromophore concentration and conjugation length on the photostability of indoline-based nonlinear optical chromophore/polymer films", J. Phys. Chem. C 119, 3273 (2015).

S. Sambale, G. V. M. Williams, J. Stephen, and S. V. Chong, "Spin-glass and variable range hopping quantum interference magnetoresistance in FeSr₂Y_1.3Ce_0.7Cu₂O_8+x", Materials Research Express 1, 046112 (2014).

Michael Jurkutat, Damian Rybicki, Oleg P. Sushkov, Grant V. M. Williams, Andreas Erb, and J. Haase, "Distribution of electrons and holes in cuprate superconductors as determined from ¹⁷O and ⁶³Cu nuclear magnetic resonance", Phys. Rev. B 90, 140504(R) (2014).

S. V. Chong, G. V. M. Williams, S. Sambale, K. Kadowaki, "Doping dependence on the upper critical, superconducting current density and thermally activated flux flow activation energy in polycrystalline CeFeAsO_1-xF_x superconductors", Physica C 507, 35 (2014).

J. Leveneur, D. F. Sanchez, J. Kennedy, P. L. Grande, P. F. P. Fichtner, G. V. M. Williams, and J. B. Metson, “Enhancement of the magnetic properties of iron nanoparticles upon incorporation of Sm”, Materials Research Express 1, 026110 (2014).

C. Gaedtke and G. V. M. Williams, "Photoluminescence and radioluminescence study of NaMgF₃:Eu nanoparticles ", Radiation Measurements 71, 258 (2014).

J. Leveneur, D. F. Sanchez, J. Kennedy, P. L. Grande, P. F. P. Fichtner, G. V. M. Williams, and J. B. Metson, “Enhancement of the magnetic properties of iron nanoparticles upon incorporation of Sm”, Materials Research Express (in press).

C. Gaedtke and G. V. M. Williams, "Photoluminescence and radioluminescence study of NaMgF₃:Eu nanoparticles Radiation Measurements", Radiation Measurements (in press).

T. Prakash, G. V. M. Williams, J. Kennedy, P. P. Murmu, J. Leveneur, S. V. Chong, and S. Rubanov, "Permalloy powders containing nanoparticles prepared by arc-discharge", Journal of Alloys and Compounds 608, 153-157 (2014).

Y. Kutuvantavida, G. V. M. Williams, and M. D. H. Bhuiyan, "Electrically modulated diffraction gratings in organic chromophore thin films", Applied Optics 53, 2687-2690 (2014).

D. M. McCann, G. V. M. Williams, A. Hyndman, J. Stephen, and J. Kennedy, "Large magnetoresistance in a permalloy/Ba2FeMoO6 sputtered film", Physica B 436, 126 (2014).

J. Leveneur, J. Kennedy, G. V. M. Williams, M. Sasase, J. B. Metson, and A. Markwitz, "Structural and chemical changes during the growth of Fe nanoparticles in SiO₂ under low energy ion implantation", International Journal of Nanotechnology 11, 466 (2014).

J. Kennedy, J. Leveneur, J. Turner, J. Futter, and G. V. M. Williams, "Applications of nanoparticle-based fluxgate magnetometers for positioning and location", IEEE Proceeding of the Sensors and Applications Symposium, Queenstown, New Zealand, 18-20 February 2014.

S. V. Chong, G. V. M. Williams, S. Sambale, J. Kennedy, and K. Kadowaki, "Magneto-resistance study of AFe₂As₂ (A=Sr, Ba) iron-based compounds", International Journal of Nanotechnology 11, 403 (2014).

C. Gaedtke, G. V. M. Williams, and D. Clarke, "Thermoluminescence studies of nanoparticle and bulk NaMgF₃:Mn", International Journal of Nanotechnology 11, 419 (2014).

G. V. M. Williams, S. Janssens, C. Gaedtke, S. G. Raymond, and D. Clarke, “Observation of photoluminescence and radioluminescence in Eu and Mn doped NaMgF₃ nanoparticles”, J. Lumin. 143, 219 (2013).

John Kennedy, Grant V. M. Williams, Peter P. Murmu, and Ben J. Ruck, "Intrinsic magnetic order and inhomogeneous transport in Gd implanted zinc oxide", Phys. Rev. B 88, 214423 (2013).

S. Chong, G. V. M. Williams, J. Kennedy, J. L. Tallon, and K. Kadowaki, "Large magneto-resistance in SrFe2As2 single crystals", EPL 104, 17002 (2013).

B. Mallett, T. Wolf, E. Gilioli, F. Licci, G. V. M. Williams, A. B. Kaiser, N. W. Ashcroft, N. Suresh, and J. L. Tallon, “Dielectric versus magnetic pairing mechanisms in high-temperature cuprate superconductors using Raman scattering”, Phys. Rev. Lett. 111, 237001 (2013).

D. Rybicki, T. Meissner, G. V. M. Williams, S. Chong, M. Lux, and J. Haase, "⁷⁵As NMR study of overdoped CeFeAsO_0.8F_0.2", Journal of Physics: Condensed Matter 25, 315701 (2013).

C. Gaedtke, G. V. M. Williams, S. Janssens, S. Raymond, and D. Clarke, "Photoluminescence and radioluminescence study of Eu and Mn doped RbMgF₃ nanoparticles", Radiation Measurements 56, 187 (2013).

J. G. Storey, J. L. Tallon, and G. V. M. Williams, "Electron pockets and pseudogap asymmetry observed in the thermopower of undoped cuprates", EPL 102, 37006 (2013).

P. P. Murmu, J. Kennedy, B. J. Ruck, G. V. M. Williams, A. Markwitz, S. Rubanov, and A. A. Suvorova, "Correlation between microstructural and magnetic properties of Tb implanted ZnO", AIP Conference Proceedings, 1525, 300 (2013).

S. Janssens, G. V. M. Williams, and D. Clarke, “Synthesis and characterization of rare earth and transition metal doped BaMgF₄ nanoparticles”, J. Lumin. 134, 277 (2013).

C. Gaedtke, G. V. M. Williams, S. Janssens, S. G. Raymond, D. Clarke, and, "The effect of ionizing radiation on the luminescence properties of Eu³⁺ and Sm³⁺ doped LaF₃ nanoparticles", Physica Status Solidi (c) 9, 2247 (2012).

P. P. Murmu, J. Kennedy, G. V. M. Williams, B. J. Ruck, S. Granville, and S. Chong, "Observation of magnetism, low resistivity, and magnetoresistance in the near-surface region of Gd implanted ZnO", Appl. Phys. Lett. 101, 082408 (2012).

Y. Kutuvantavida, G. V. M. Williams, E. M. Pogson, M. D. H. Bhuiyan, K. Radhanpura, and R. A. Lewis, "Material characterization at low frequencies using THz and Raman spectroscopy", IEEE proceedings of IRMMW-THz 2012.

J. Leveneur, D. Sanchez, J. Kennedy, P. L. Grande, G. V. M. Williams, J. Metson, and B. C. C. Cowie, “Iron-based bimagnetic core/shell nanostructures in SiO2: a TEM, MEIS, and energy-resolved XPS analysis”, Journal of Nanoparticle Research 14, 1149 (2012).

J. Kennedy, J. Leveneur, Y. Takeda, G. V. M. Williams, S. Kupe, D. R. G. Mitchell, A. Markwitz, and J. Metson, “Evolution of the structure and magneto-optical properties of ion beam synthesized ion nanoclusters”, Journal of Materials Science 47, 1127 (2012).

R. Peltier, W. R. Siah, G. V. M. Williams, M. A. Brimble, R. D. Tilley, and D. E.. Williams, "Novel phosphopeptides as surface-active agents in iron nanoparticle synthesis", Aust. J. Chem. 65, 680 (2012).

S. G. Raymond, P. Wagner, M. Panczyk, G. V. M. Williams, K. J. Stevens, I. Monfils, D. Hirst, J. Whaanga, Y. Kutuvantavida, M. D. H. Bhuiyan, and A. J. Kay, "Development of fibre Bragg grating based strain/temperature sensing system", Proc. SPIE 8258, 82581L (2012).

P. P. Murmu, J. Kennedy, B. J. Ruck, A. Markwitz, G. V. M. Williams, and S. Rubanov, “Structural and magnetic properties of low-energy Gd implanted ZnO single crystals”, Nuclear Instruments and Methods in Physics Research B 272, 100 (2012).

P. P. Murmu, J. Kennedy, B.J. Ruck, G.V.M. Williams, A. Markwitz, S. Rubanov, and A. A. Suvorova, “Effect of annealing on the structural, electrical and magnetic properties of Gd-implanted ZnO thin films”, J. Mater. Sci. 47, 1119 (2012).

C. Gaedtke, G. V. M. Williams, S. G. Raymond, D. Clarke, and S. Janssens, "Fluoride nanoparticles for advanced nano-radioluminescence dosimeters", Proceedings for APMC-10, ICONN 2012, and ACMM-22, Perth, Australia, 5-9 February, 2012 (ISBN:978-1-74052-245-8).

J. Kennedy, J. Leveneur, J. Metson, G. V. M. Williams, S. Rubanov, and A. Markiwtz, “Structural and chemical changes during the ion beam synthesis of Fe nanocluster in silicon nitride”, Proceedings of the International Conference on Advanced Materials, ICAM2012, India, 5-7 January, 2012.

2009-2011

B. P. P. Mallett, T. Schnyder, G. V. M. Williams, and J. L. Tallon, “Low frequency Raman modes in Bi_2-zPb_zSr_1.6Ln_0.4CuO_6-δ”, Materials Science Forum 700, 11 (2011). 10.4028/www.scientific.net/MSF.700.11

D. M. McCann, G. V. M. Williams, A. R. Hyndman, and J. Steven, “Magnetization and magneto-resistance study of ferromagnetic metal/half metallic double perovskite bi-layers”, Materials Science Forum 700, 33 (2011). DOI: 10.4028/www.scientific.net/MSF.700.33

J. Stephen, G. V. M. Williams, and B. J. Ruck, “Magnetothermopower and Hall effect study of electron doping in Sr₂FeMoO₆”, Materials Science forum 700, 19 (2011). DOI: 10.4028/www.scientific.net/MSF.700.19

J. Leveneur, J. Kennedy, G. V. M. Williams, F. Fang, J. Metson, and A. Markwitz, “Effects of Fe⁺ fluences on the growth and magnetic properties of surface nanoclusters”, Materials Science Forum 700, 37 (2011). DOI: 10.4028/www.scientific.net/MSF.700.37

G. V. M. Williams, S. G. Raymond, N. Denton, and C. Gaedtke, “Development and characterization of a portable fibre optic dosimeter”, Materials Science Forum 700, 174 (2011). DOI: 10.4028/www.scientific.net/MSF.700.174

C. M. Bartle and G. V. M. Williams, “Use of filter combinations and an organic scintillator to identify and locate fast neutron scources in a mixed radiation field”, Radiation Measurements 46, 1716 (2011).

S. V. Chong, J. L. Tallon, F. Fang, J. Kennedy, K. Kadowaki, and G. V. M. Williams, “Surface superconductivity on SrFe₂As₂ single crystals induced by ion implantat ion”, European Physical Society Letters 94, 37009, (2011).

J. Beal, S. Prabakar, N. Gaston, G. B. Teh, P. Etchegoin, G. Williams, and R. D. Tilley, “Synthesis and Comparison of the Magnetic Properties of Iron Sulfide Spinel and Iron Oxide Spinel Nanocrystals”, Chemistry of Materials 23, 2514 (2011).

U. Skrzypczak, G. V. M. Williams, M. Miclea, M. Delower. H. Bhuiyan, S. Janseens, and S. Schweizer, “z-Scan Characterization of Zwitterionic Chromophores for Optoelectronic Switching”, Applied Physics A 104, 947 (2011).

G. V. M. Williams, M. Jurkutat, D. Rybicki, and J. Haase, “Cu nuclear magnetic resonance study of Pr_1.85Ce_0.15Cu_1-xNi_xO₄”, J. Phys.: Condens. Matter 23, 075701 (2011).

G. V. M. Williams and S. Raymond, “Fiber-optic-coupled RbMgF₃:Eu²⁺ for remote radiation dosimetry”, Radiation Measurements 46, 1099 (2011).

G. V. M. Williams, Y. Kutuvantavidia, S. Janssens, My T. T. Do, S. G. Raymond, M. Dhuiyan, N. Denton, and A. J. Kay “The effects of excited state lifetime, optical intensity and oxygen quenchers on the photostability of zwitterionic chromophores”, J. Appl. Phys. 110, 083524 (2011).

K. J. Stephens, G. V. M. Williams, I. Monfils, D. Hirst, P. Wagner, S. G. Raymond, J. W. Quilty, and M. T. T. Do, “Optics-based strain sensing system”, Materials Science Forum 700, 45 (2011). DOI: 10.4028/www.scientific.net/MSF.700.45

A. P. LaGrow, B. Ingham, S. Cheong, G. V. M. Williams, C. Dotzler, M. F. Toney, D. A. Jefferson, E. C. Corbos, P. T. Biship, J. Cookson, and R. D. Tilley, “Synthesis, assembly and magnetic properties of monodisperse nickel nanocubes”, J. Am. Chem. Soc. 134, 855 (2011).

K. J. Stevens, M. Panczyk, S. G. Raymond, G. V. M. Williams, I. Monfils, D. Hirst, and P. Wagner, “Characterisation of a fibre Bragg grating system for strain and temperature sensing”, Proceedings of the 5th International Conference on Sensing Technology, 28 Nov. to 1st Dec. 2011, Palmerston North, New Zealand.

J. W. Quilty and G. V. M. Williams, “Tunable Bragg gratings in polymer thin films”, Materials Science forum 700, 158 (2011). DOI: 10.4028/www.scientific.net/MSF.700.158

Y. Kutuvantavida, G. V. M. Williams, J. W. Quilty, M. Delower H. Bhuiyan, and A. J. Kay, “High electro-optic coefficient in organic NLO polymers: poling and study of the relaxation process”, Materials Science forum 700, 154 (2011). DOI: 10.4028/www.scientific.net/MSF.700.154

Y. Kutuvantavida, G. V. M. Williams, S. Janssens, S. G. Raymond, M. D. H. Bhuiyan, and A. J. Kay, "Photostability Study of Structurally Modified Electro-Optic Chromophores and the Effect of Singlet Oxygen Quenchers", Proceedings of the IQEC/CLEO Pacific Rim 2011, Optical Society of America, C1092, (2011).

D. Rybicki, M. Greven, J. Haase, T. Meissner, S. K. Goh, and G. V. M. Williams, “Two-component behavior of cuprate superconductors from NMR shifts”, Materials Science forum 700, 1 (2011). DOI: 10.4028/www.scientific.net/MSF.700.1

M. D. H. Bhuiyan, G. J. Gainsford, Y. Katuvantavida, J. W. Quilty, A. J. Kay, G. V. M. Williams, and M. R. Waterland, “Synthesis, Structural and Nonlinear Optical Properties of 2-(3-Cyano-4-{5-[1-(2-hydroxyethyl)-3,3-dimethyl-1,3-dihydro-indol-2-ylidene]-penta-1,3-dienyl}-5,5-dimethyl-5H-uran-2-ylidene)-malononitrile”, Mol. Crys. Liq. Crys. 48, 272 (2011).

David Clarke, Stefaan Janssens, and Grant Williams, “Highly Luminescent LaF₃:Eu³⁺ Nanoparticles through Surface Modification”, Proceedings of the 2010 International Conference on Nanoscience and Nanotechnology, 22-26 February 2010, Sydney, Australia. Published in IEEE Explore, pp70-72, 13 Oct 2011, DOI: 10.1109/ICONN.2010.6045179

T. Meissner, S. W. Goh, J. Haase, G. V. M. Williams, and P. Littlewood, “High pressure changes in the 17O NMR spin shift pseudo-gap in YBa₂Cu₄O₈”, Phys. Rev. B 83, 220517(R) (2011).

J. Leveneur, J. Kennedy, G. V. M. Williams, J. Metson, and A. Markwitz “Large room temperature magnetoresistance in ion beam synthesised surface Fe nanoclusters on SiO₂”, Appl. Phys. Lett. 98, 053111 (2011).

J. Kennedy, J. Leveneur, A. Markwitz , D. R. G. Mitchell, and G. V. M. Williams, “Fabrication of surface magnetic nanoclusters using low energy ion implantation and electron beam annealing”, Nanotechnology 22, 115602 (2011).

S. Janssens, G. V. M. Williams, D. Clarke, and M. Sharp, “Photoluminescence study of LaF₃:Eu³⁺ nanoparticles capped with different ligands”, Physica Status Solidi B 248, 439 (2011).

S. Janssens, G. V. M. Williams, and D. Clarke, “Systematic Study of LaF₃:Eu³⁺ Nanoparticles”, J. Appl. Phys. 109, 023506 (2011).

Ayele Teshome, M. Delower H. Bhuiyan, Graeme J. Gainsford, M. Ashraf, Inge Asselberghs, Grant V.M. Williams, Andrew J. Kay, and Koen Claysa, "Synthesis, linear and quadratic nonlinear optical properties of ionic indoline and N,N-dimethylaniline based chromophores", Optical Materials 33, 336 (2011).

S. G. Raymond, D Clark, S. Janssens, and G. V. M. Williams, “Optical properties of CdSe_1-xS_x nanoparticles”, Proc. SPIE 7847, 784704 (2010).

S. Granville, B. J. Ruck, F. Buddle, H. J. Trodahl, and G. V. M. Williams, “Nearest-neighbor antiferromagnetic exchange in Ga_1-xMn_xN”, Phys. Rev. B 81, 184425 (2010).

C. Meyer, B. J. Ruck, A. R. H. Preston, S. Granville, G. V. M. Williams and H. J. Trodahl, “Magnetic properties of ErN films”, Journal of Magnetism and Magnetic Materials 322, 1973 (2010).

S. G. Raymond, S. Janssens, My T. T. Do, G. V. M. Williams, N. Denton, J. Anderson, and D. H. Bhuiyan, “Photostability Enhancement Studies on Zwitterionic Chromophores for Nonlinear Optics”, Proc. SPIE 7599, 759914 (2010).

A. Edgar, M. Bartle, C. Varoy, S. Raymond, and G. Williams, “Structure and scintillation properties of cerium-doped barium chloride ceramics: effects of cation and anion substitution”, IEEE Transactions on Nuclear Science 57, 1218 (2010).

J. Haase, C. P. Slichter, and G. V. M. Williams “Evidence for two electronic components in high-temperature superconductivity from NMR”, J. Phys. Condens. Matter 21, 455702 (2009).

My T. T. Do, S. Janssens, S. G. Raymond, G. V. M. Williams, D. H. Bhuiyan, and A. J. Kay, “Photodegradation of Nonlinear Optical Organic Films with Varying Optical Intensity”, Proceedings of the Australasian Conference on Optics, Lasers and Spectroscopy (ACOLS), Adelaide University, Australia, 29 November to 3 December 2009.

S. G. Raymond, G. V. M. Williams, B. Lochocki, M. D. H. Bhuiyan, A. J. Kay, and J. W. Quilty, “The effects of oxygen concentration and light intensity on the photostability of zwitterionic chromophores”, J. Appl. Phys. 105, 113123 (2009).

G. V. M. Williams, E. K. Hemery, and D. McCann, “Magnetic and transport properties of SrFeO_x”, Phys. Rev. B 79, 024412 (2009).

S. G. Raymond, G. V. M. Williams, M. N. C. Thomson, S. Janssens, M. D. H. Bhuiyan, My. T. T. Do, and A. J. Kay “Photostability studies on zwitterionic chromophores for nonlinear optics”, AIP Conference Proceedings 1151, 86 (2009).

A. R. Hyndman, G. V. M. Williams, R. J. Reeves, and D. M. McCann, “Growth and characterization of cobalt doped titanium dioxide films by pulsed laser deposition”, AIP Conference Proceedings 1151, 137 (2009).

J. W. Quilty, G. V. M. Williams, D. Bhuiyan, M. Ashraf, S. Raymond, and A. J. Kay, “The electro-opric response of zwitterionic non-linear optical (NLO) materials”, AIP Conference Proceedings 1151, 79 (2009).

S. G. Raymond, G. V. M. Williams, My. T. T. Do, S. Janssens, B. Lochocki, M. D. H. Bhuiyan, and A. J. Kay, “Photoluminescence and optical studies of photodegradation in nonlinear optical organic chromophores”, Proc. SPIE 7354, 735408 (2009).

C. Dotzler, G. V .M. Williams, U. Rieser, and J. Robinson, “Photoluminescence, optically stimulated luminescence and thermoluminescence study of RbMgF₃:Eu²⁺”, J. Appl. Phys. 105, 023107 (2009).

G. V. M. Williams, C. Dotzler, and J. Robinson, “Radiation-Induced Optically Stimulated Luminescence in Mn²⁺ and Eu²⁺ Doped RbMgF₃”, Physica Status Solidi C 6, S198-S201 (2009).

G. V. M. Williams, C. Dotzler, A. Edgar, and S. G. Raymond, “Optically Rewritable Diffraction Grating in RbCdF₃:Mn²⁺”, J. Mater. Sci.: Mater. Electron 20, S268 (2009).

2006-2008

G. V. M. Williams, S. Richter, J. Haase, C. U. Jung, Min-Seok Park and Sung-Ik Lee, “Cu NMR study of Sr_0.9La_0.1Cu_1-xNi_xO₂”, Phys. Rev. B 78, 104522 (2008).

J. Haase, C. P. Slichter, and G. V. M. Williams, “Two-component behaviour of high-temperature superconductors from NMR”, Journal of Physics: Condensed Matter 20, 434227 (2008).

C. Meyer, A. R. H. Preston, J. Zhong, B. J. Ruck, S. Granville, G. V. M. Williams, H. J. Trodahl, “Ferromagnetism of SmN thin films”, Phys. Rev. B 78, 174406 (2008).

N. Suresh, J.G. Storey, G.V.M. Williams and J.L. Tallon, “Strong pressure dependence of the oxygen isotope effect in YBa₂Cu₄O₈”, Phys. Rev. B 78, 100503 (2008).

M. Požek, A. Dulčić, I. Kupčić, A. Hamzić, D. Paar, M. Basletić, E. Tafra, and G. V. M. Williams, “Microwave and magnetotransport properties of RuSr₂RCu₂O₈ (R =Eu, Gd) doped with Sn”, Phys. Rev. B 77, 214514 (2008).

J. G. Storey, J. L. Tallon, and G. V. M. Williams, “Thermodynamic properties of Bi₂Sr₂CaCu₂O₈ calculated from the electronic dispersion”, Phys. Rev. B 77, 052504 (2008).

C. Dotzler, G. V. M. Williams, and A. Edgar, “Radiation-Induced Optically and Thermally Stimulated Luminescence in RbCdF₃ and RbMgF₃”, Current Applied Physics 8, 447 (2008).

C. E. A. Grigorescu, L. Tortet, O. Monnereau, L. Argeme, H. J. Trodahl, S. Granville, A. Bittar, F. Budde, B. J. Ruck, G. V. M. Williams, G. Pavelescu, A. Tonetto, R. Notonier, and C. Logofatu, “Structural and optical properties of GaN-based nanocrystalline thin films”, Thin Solid Films 516, 617 (2008).

J. G. Storey, J. L. Tallon, and G. V. M. Williams, “Tracking the Pseudogap below Tc by Modeling the Raman Response”, Current Applied Physics 8, 280 (2008).

A. Edgar, M. Bartle, S.G. Raymond, G.V.M Williams, and C. Varoy, “Structural and Scintillation Properties of Cerium–Doped Ba_1-xLa_xCl_2+x Ceramics”, IEEE Transactions on Nuclear Science 55, 1160 (2008).

E. K. Hemery, G. V. M. Williams, J. D. Graham, and H. J. Trodahl, “Reduced Magnetization and Magneto-Resistance in Sr₂Fe_1-xCr_xMoO₆ with Increasing Cr Substitution”, Current Applied Physics 8, 273 (2008).

S. G. Raymond, H. Wang, G. V. M. Williams, and A. J. Kay, “Photostability of Non Linear Optical Polymers”, Proc. SPIE 6891, 689109 (2008).

G. V. M. Williams, “Cu Nuclear Quadrupole Resonance Study of Substituently Induced Disorder in Underdoped Y_1-xCa_xBa_2-xLa_xCu₄O₈”, Phys. Rev. B 76, 094502 (2007).

J. G. Storey, J. L. Tallon, and G. V. M. Williams, “Saddle-Point van Hove Singularity and the Phase Diagram of High-Tc Cuprates”, Phys. Rev. B 76, 174522 (2007).

A. R. H. Preston, S. Granville, D. H. Housden, B. Ludbrook, B. J. Ruck, H. J. Trodahl, A. Bittar, G. V. M. Williams, J. E. Downes, K. E. Smith, Y. Zhang, A. DeMasi, and W. R. L. Lambrecht, “Comparison between experiment and calculated band structures for DyN and SmN”, Phys. Rev. B 76, 245120 (2007).

C. Dotzler, G. V. M. Williams, and A. Edgar, “RbCdF₃: A Potential UV Dosimeter Material”, Appl. Phys. Lett. 91, 181909 (2007).

Chia-Jyi Liu, Pradipta K. Nayak, and G. V. M. Williams, “Magnetothermopower and Magnetoresistivity of RuSr₂Gd_2-xCe_xCu₂O_10+δ (x=0.6, 1.0)”, Appl. Phys. Lett. 91, 123110 (2007).

C. Dotzler, G. V. M. Williams, U. Rieser, and A. Edgar, “Optically Stimulated Luminescence of NaMgF₃:Eu²⁺”, Appl. Phys. Lett. 91, 121910 (2007).

G. V. M. Williams, C. Dotzler, A. Edgar, and S. G. Raymond, “Ultra-violet Induced Absorption and Bragg Grating Inscription in RbCdF₃:Mn²⁺”, J. Appl. Phys. 102, 113106 (2007).

G. V. M. Williams and J. Haase, “Doping-Dependent Reduction of the Cu Nuclear Magnetic Resonance Intensity in the Electron-Doped Superconductor Pr_2-xCe_xCuO₄”, Phys. Rev. B 75, 172506 (2007).

G. V. M. Williams, “The Effect of Pb on the Low Frequency Raman Modes in Bi_2-xPb_xSr₂CaCu₂O_8+δ and Bi_2-xPb_xSr₂Ca₂Cu₃O_10+δ Superconductors”, Appl. Phys. Lett. 91, 012509 (2007).

J. G. Storey, J. L. Tallon, G. V. M. Williams, and J. W. Loram, “Fermi Arcs in Cuprate Superconductors: Tracking the Pseudogap below Tc and above T*”, Phys. Rev. B 76, 060502R (2007).

J. W. Lynn, Y. Chen, Q. Huang, S. K. Goh, and G. V. M. Williams, “Search for Magnetic Order in Superconducting RuSr₂Eu_1.2Ce_0.8Cu₂O₁₀”, Phys. Rev. B 76, 014519 (2007).

M. Požek, A. Dulčić, A. Hamzić, M. Basletić, E. Tafra, G. V. M. Williams, and S. Krämer, “Magnetotransport of lanthanum doped RuSr₂GdCu₂O₈ - the role of gadolinium”, Eur. Phys. J. B 57, 1 (2007).

E. K. Hemery, G. V. M. Williams, and H. J. Trodahl, “The effects of Al substitution on the magnetic and electronic properties of Sr₂Fe_1−xAl_xMoO₆”, Physica B 394, 74 (2007).

C. Dotzler, G. V. M. Williams, U. Rieser, and A. Edgar, “Impurity-doped Fluoroperovskites for Ionizing Radiation and Solar UV”, Proceedings of the International Conference on Materials for Advanced Technologies, Singapore, 1-6 July 2007.

\E. K. Hemery, G. V. M. Williams, and H. J. Trodahl, “Isoelectronic and electronic doping in Sr₂FeMoO₆”, J. Magnetism and Magnetic Materials 310, 1958 (2007).

G. V. M. Williams, A. Bittar, C. Dotzler, A. Beaudin, C. Varoy, C. Dunford, “Glass-Ceramics and Epoxy-Composites for Radiation Imaging”, Radiation Measurements 42, 899 (2007).

C. Dotzler, G. V. M. Williams, A. Edgar, and G. A. Appleby, Dosimetric Properties of RbCdF₃:Mn²⁺, Radiation Measurements 42, 586 (2007).

C. J. Dotzler, G. V. M. Williams, A. Edgar, Thermoluminescence, photoluminescence and optically stimulated luminescence properties of x-ray irradiated RbMgF₃:Mn²⁺, Phys. Stat. Sol. (c) 4, 992 (2007).

E. K. Hemery, G. V. M. Williams, and H. J. Trodahl, Anomalous Thermoelectric Power in SrFeO_3-δ: Evidence for Charge-ordering, Phys. Rev. B 75, 09403 (2007).

E. K. Hemery, G. V. M. Williams, and H. J. Trodahl, “The Effect of Isoelectronic Substitution on the Magneto-resistance of Sr_2-xBa_xFeMoO₆”, Physica B 390, 175 (2007).

G. V. M. Williams, “Nuclear Quadrupole Resonance Study of RuSr₂R_2-xCe_xCu2O_10+δ (R=Eu,Gd) and the Effect of Electronic Doping”, Phys. Rev. B 73, 064510 (2006).

S. Goh, G. V. M. Williams, E. K. Hemery, and H. K. Lee, “Superconducting and Magnetic Properties of Ru_1-yM_ySr₂Eu_2-xCe_xCu₂O_10+δ (M=Sn,Nb)”, Phys. Rev. B 74, 143506 (2006).

E. K. Hemery, G. V. M. Williams, and H. J. Trodahl, La-Induced Changes in the Magnetic and Electronic Properties of Sr_2-xLa_xFeMoO₆, Phys. Rev. B 74, 054423 (2006).

S. Granville, B.J. Ruck, F. Budde, A. Koo, D. Pringle, F. Kuchler, A. R. H. Preston, D. H. Housden, N. Lund, A. Bittar, G.V.M. Williams, and H.J. Trodahl, Semiconducting Ground State of GdN Thin Films, Phys. Rev. B 73, 235335 (2006).

C. J. Dotzler, G. V. M. Williams, A. Edgar, Radiation-Induced Changes in the optical properties of Manganese doped Fluoroperovskites, Proceedings of the Australian Institute of Physics 17th National Congress 2006 – Brisbane, 3-8 December 2006 (ISBN 0-9598064-7-4).

G. V. M. Williams, A. Edgar and G. A. Appleby, Glass-Ceramic X-Ray and Thermal Neutron Imaging Plates, Proceedings of the 12th Asia Pacific Conference on Non-Destructive Testing, Auckland, New Zealand, 5-11 November, 2006. (The e-Journal of Nondestructive Testing, Jan 2007, vol 12, No. 1, http://www.ndt.net/).

E. K. Hemery, G. V. M. Williams, H. J. Trodahl, and R. Gaál, S₂FeMoO₆ Double Perovskites and the Effects of Aluminium Substitution, Proceedings of the Australian Institute of Physics 17th National Congress 2006 – Brisbane, 3-8 December 2006 (ISBN 0-9598064-7-4).

S. K. Goh, G. V. M. Williams, and H. K. Lee, “The Effect of Substituents on Magnetic Order and Superconductivity in RuSr₂R_2-xCexCu₂O_10+δ (R=Gd,Eu)”, Current Applied Physics 6, 515 (2006).

A Bittar, G. V. M. Williams, N Strickland, C. Grigorescu, O. Monnereau, L. Tortet, M.Autric, E. Valerio, H. J.Trodahl, S. Granville, B. Ruck, Electronic states of disordered and ordered bulk and thin film Co₂MnSi for spintronic applications, Proceeding of the 2006 International Conference on Nanoscience and Nanotechnology (ICONN2006), 3-7, July 2006, Brisbane, Qld, Australia.

S. K. Goh, E. K. Hemery, G. V. M. Williams, and H. K. Lee, Magnetic and Electronic Properties of Ru_1-yMySr₂Eu_2-xCe_xCu₂O_10+δ (M = Nb, Sn), Proceeding of the 30th Condensed Matter and Materials Meeting, Wagga, 7-10 February 2006 (ISBN 1-920791-09-04).

J. Haase, and G. V. M. Williams, “NMR and Electronic Inhomogeneities in Cuprate Superconductors”, Current Applied Physics 6, 293 (2006).

H. J. Trodahl, C. E. A. Grigorescu, A. Bittar, F. Budde, B. J. Ruck, S. Granville, G. V. M. Williams, O. Monnereau, R. Notonier, “SEM and Raman Studies of Annealed Nanocrystalline GaN and Amorphous GaN:O”, J. Non-Cryts. Solids 352, 1282 (2006).

A. Edgar, G.V.M. Williams, R.Tilley, and J. Hamelin, “Optical Scattering in Glass Ceramics”, Current Applied Physics 6, 355 (2006).

G. A. Appleby A. Edgar, G. V. M. Williams, and P. Vontobel, “Structure and neutron imaging characteristics of lithium borate - barium chloride glasses and glass-ceramics”, Nucl. Inst. Meth. A 564, 1 (2006) 424-430.

E. K. Hemery, G.V.M. Williams, and H.J. Trodahl, Sr₂FeMoO₆ Double Perovskites and the Effects of Electronic Doping by La Substitution, Proceeding of the 30th Condensed Matter and Materials Meeting, Wagga, 7-10 February 2006 (ISBN 1-920791-09-04).

A. Edgar, G.V.M. Williams, S. Schweizer, J.-M. Spaeth, “Spatial Resolution of a Glass-Ceramic X-ray Storage Phosphor”, Current Applied Physics 6, 399 (2006).

C. Dotzler, G. V. M. Williams, A. Edgar, S. Schweizer, B. Henke, M. Speath, A. Bittar, J. Hamlin, and C. Dunford, “The Effect of X-Ray and UV Radiation on the Optical Properties of RbCdF₃:Mn²⁺”, J. Appl. Phys. 100, 033102 (2006).

G. V. M. Williams, S. Schweizer, B. Henke, A. Edgar, and C. Dunford, “X-ray and UV Induced Photoluminescence from RbCdF₃:Mn²⁺”, Current Applied Physics 6, 351 (2006).

G. A. Appleby, C. M. Bartle, G. V. M. Williams, A. Edgar, “Lithium Borate Glass Ceramics as Thermal Neutron Imaging Plates”, Current Applied Physics 6, 389 (2006).

G. Appleby, A. Edgar, G. V. M. Williams, and A. J. J. Bos, “Neutron Sensitive Lithium-Borate-Barium-Chloride Glass-Ceramics”, Appl. Phys. Lett. 89, 101902 (2006).

E. K. Hemery, G. V. M. Williams, and H. J. Trodahl, “The Effect of Preparation Method and Grain Morphology on the Physical Properties of A₂FeMoO₆ (A=Sr,Ba)”, Current Applied Physics 6, 312 (2006).

N. M. Strickland, G. V. M. Williams, A. Semwal, D. T. Verebelyi, and W. Zhang, “Oxygen loading in second-generation high-temperature superconductor tapes”, Current Applied Physics 6, 511 (2006).

S. Granville, F. Budde, B. J. Ruck, and H. J. Trodahl, G. V. M. Williams, A. Bittar, and M. Ryan, J. Kennedy and A. Markwitz, J. B. Metson, K. E. Prince, J. M. Cairney, M. C. Ridgway, “Single phase nanocrystalline GaMnN thin films with high Mn content”, J. Appl. Phys. 100, 084310 (2006).

2003-2005

H. K. Lee and G. V. M. Williams, “The Effect of La and Sn doping on the Magnetic and superconducting properties of RuSr₂EuCeCu₂O_z”, International Journal of Modern Physics B 19, 353 (2005).

S. Schweizer, M. Secu, J.-M. Spaeth, A. Edgar, G.V.M. Williams, “Photostimulable Defects in Nano-Crystallites in Fluorozirconate Glasses”, Physica Status Solidi c 202, 243 (2005).

J. Selling, S. Schweizer, J.-M. Spaeth, G. Corradi, A. Edgar, G.V.M. Williams, “Radiation Defects in Ce-Doped BaCl₂ and Fluorochlorozirconate Glass-Ceramic X-Ray Storage Phosphors”, Physica Status Solidi c 202, 592 (2005).

C. J. Liu, C. S. Sheu, T. W. Wu, L. C. Huang. F. H. Hsu, H. D. Yang, and G. V. M. Williams, “Magnetothermopower and Magnetoresistivity of RuSr₂Gd_1-xLa_xCu₂O₈ (x=0,0.1)”, Phys. Rev. B 71, 14502 (2005).

G. V. M. Williams, H. K. Lee and S. K. Goh. “Spatially Inhomogeneous Spin Fluctuations in RuSr₂EuCeCu₂O_10+δ” Phys. Rev. B 71, 014515 (2005).

G. V. M. Williams, S. Krämer, J. L. Tallon, and J. W. Loram, “Localized Behavior near the Zn Impurity in YBa₂Cu₄O₈ as Measured By Nuclear Quadrupole Resonance”, Phys. Rev. B 71, 176502 (2005).

S. Schweizer, L. W. Hobbs, M. Secu, J. M. Spaeth, A. Edgar, G. V. M. Williams, and J. Hamlin, “Photostimulated Luminescence from Fluorochlorozirconate Glass-Ceramics and the Effect of Crystallite Size”, J. Appl. Phys. 97, 83522 (2005).

J. L. Tallon, R.S. Islam, J. Storey, G. V. M. Williams and J. R. Cooper, “Isotope effect in the superfluid density of high-Tc superconductors impurity scattering, stripes and pseudogap”, Phys. Rev. Lett. 94, 237002 (2005).

F. Budde, B. J. Ruck, A. Koo, S. Granville, H. J. Trodahl, A. Bittar, G. V. M. Williams, M. J. Ariza, B. Bonnet, D. Jones, J. B. Metson, S. Rubanov, and P. Munroe, “Stabilization of Amorphous GaN by oxygen”, J. Appl. Phys. 98, 063514 (2005).

S. Granville, B. J. Ruck, F. Budde, A. Koo, J. E. Downes, H. J. Trodahl, A. Bittar, N. Strickland, G. V. M. Williams, W. R. L. Lambrecht, Kevin E. Smith, Timothy Learmonth, V. J. Kennedy, and A. Markwitz, “Optical conductivity and X-ray absorption and emission study of the bandstructure of MnN films”, Phys. Rev. B 72, 205127 (2005).

G. V. M. Williams, J. Haase, Min-Seok Park, Kyung Hee Kim, and Sung-Ik Lee, “Doping-Dependent Reduction of the Cu Nuclear Magnetic Resonance Intensity in the Electron-Doped Superconductors”, Phys. Rev. B 72, 212511 (2005).

A. Edgar, G. V. M Williams, J. Hamlin, S. Schweizer, M. Secu and J. M. Spaeth, “New Materials for Glass-Ceramic X-ray Storage Phosphors”, Current Applied Physics, 4, 193 (2004).

G. V. M. Williams, S. Krämer and R. Dupree, “Charge and Spin Dynamics in the Electron-Doped High Temperature Superconducting Cuprates” Current Applied Physics 4, 280 (2004).

J. Haase, O. P. Sushkov, P. Horsch, G.V.M. Williams, “Planar Cu and O hole densities in high-Tc cuprates determined with NMR”, Phys. Rev. B 69, 94904 (2004).

A. Edgar, G. V. M. Williams and G. Appleby, “Photoluminescence and Photostimulated Luminescence from Europium-Doped Rubidium Barium Bromide in Flurozirconate Glass Ceramics”, J. Luminescence 108, 19 (2004).

A. Edgar, G. V. M Williams, M. Secu, S. Schweizer, and J. M. Spaeth, “Optical Properties of a High-Efficiency Glass-Ceramic X-Ray Storage Phosphor”, Radiation Measurements 38, 413, (2004).

M. Secu, S. Schweizer, U. Rogulis, J. M. Spaeth, A. Edgar and G. V. M Williams, “Radiation Defects in X-ray Storage Phosphor Fluorobromozirconate Glass-Ceramics Activated with Cerium Ions”, Radiation Measurements 38, 739 (2004).

S. Schweizer, M. Secu, J.M. Spaeth, L. W. Hobbs, A. Edgar and G.V.M Williams, “New Developments in X-Ray Storage Phosphors”, Radiation Measurements 38, 633 (2004).

G. V. M. Williams, “Similarities and Differences between the Static and Dynamic Spin and Charge Properties of the Electron-Doped and Hole-Doped High Temperature Superconducting Cuprates” for “Recent Research Developments in Physics” in Recent Research Developments in Physics Vol 5, Part I (TransWorld Research, Trivandrum, India, 2004).

G. V. M. Williams, S. Krämer, R. Dupree, A. Howes, “Carrier Concentration Independent Antiferromagnetic Spin-Fluctuations in the Electron Doped High Temperature Superconducting Cuprate, Pr_2-xCe_xCuO₄” Phys. Rev. B 69, 134504 (2004).

G. V. M. Williams, S. Krämer, C. U. Jung, Min-Seok Park and Sung-Ik Lee, “Nuclear Magnetic Resonance Study of the Electron-Doped High Temperature Superconducting Cuprates”, Solid State NMR 26, 236 (2004).

B. J. Ruck, A. Koo, U. D. Lanke, F. Budde, H. J. Trodahl, G. V. M. Williams, A. Bittar, J. B. Metson, E. Nodwell and T. Tiedje, “Filled and Empty States of Disordered GaN Studied by X-Ray Absorption and Emission” J. Appl. Phys. 96, 3571 (2004).

H. J. Trodahl, B. J. Ruck, F. Budde, A. Koo, S. Granville, A. Bittar, G. V. M. Williams, C. E. A. Grigorescu, R. Notonier, and A. Tonetto, “Nanostructured amorphous Group III nitrides: potential for refractive index engineering”, IEEE Proc. 6th International Conference on Transparent Optical Networks (ISBN 0-7803-8343-5), 2,151-153, (2004). Ed. M. Marciniak.

N. M. Strickland, Anita Semwal, G. V. M. Williams, D. T. Verebelyi and W. Zhang, “Optimising the doping state of YBCO coated conductors”, Supercond. Science and Tech. 17, 473 (2004).

Anita Semwal, N. M. Strickland, A. Bubendorfer, S. H. Naqib, Swee Kuan Goh and G. V. M. Williams, Doping Dependence of the Critical Current and Irreversibility Field in Y_1-xCa_xBa₂Cu₃O_7-δ, Supercond. Science and Tech. 17, 506 (2004).

J. L. Tallon, T. Benseman, G. V. M. Williams and J. W. Loram, “The Phase Diagram of High-TC Superconductors”, Physica C 415, 9 (2004).

H. K. Lee, H. M. Park and G. V. M. Williams, “The Effect of Nb Doping on Structural and Magnetic Properties of RuSr₂Gd_1.5-yEu_yCe_0.5Cu₂O_z”, Physica C415, 172 (2004).

G. A. Appleby, A. Edgar, and G. V. M. Williams, “Structure and Photostimulated Luminescent Properties of Eu-Doped X₂BaY₄”, J. Appl. Phys. 96, 6281 (2004).

S. Granville, F. Budde, B. Ruck, A. Koo, H. J. Trodahl, G. V. M. Williams, A. Bittar, V. J. Kennedy, J. Cairney, “Structural properties of nanocrystalline GaN:Mn films grown by ion-assisted deposition”, Bulletin of the American Physical Society. Vol. 49, Part 1, no. 1, pp. L10 2. Mar. 2004.

M. Secu, S. Schweizer, J. M. Spaeth, A. Edgar, G. V. M. Williams and U. Rieser, “Phtostimulated Luminescence in a Fluorobromozirconate Glass-Ceramic X-ray Storage Phosphor”, J. Phys.: Condensed Matter 15, 1097 (2003).

G. V. M. Williams, H. K. Lee and S. Krämer, “The Effect of Impurity Substitution on Superconductivity and Magnetic Order in RuSr₂EuCu₂O₈”, Phys. Rev. B 67, 104514 (2003).

A. Edgar, G. V. M. Williams, K. Perla, M. Secu, S. Schweizer, J. M. Spaeth, J. Hu, P. J. Newman and D. R. MacFarlane, “A New Fluorozirconate Glass-Ceramic X-ray Storage Phosphor”, J. Non-Crystal. Solids 326 & 327, 489 (2003).

G. V. M. Williams, “Experimental problems with the current models used to account for spin and charge dynamics in the high temperature superconducting cuprates” in "Models and Methods of High-Tc Superconductivity: Some Frontal Aspects Volume 1 (volume 241 in Horizons in World Physics). Edited by J. K. Srivastava and S. M. Rao (Nova Science Publishers, New York (U.S.A.), 2003) ISBN:1-59033-666-6.

S. Schweizer, L. W. Hobbs, M. Secu, J. M. Spaeth, A. Edgar and G. V. M. Williams, “Photostimulated Luminescence in Eu-doped Fluorochlorozirconate Glass Ceramics”, Appl. Phys. Lett. 83, 449 (2003).

2000-2002

A. Butera, M. Vásquez Mansilla, A. Fainstein, and G. V. M. Williams, “Effective Ru moment in RuSr₂Eu_2-xCe_xCu₂O_10+δ from high temperature magnetic susceptibility”, Physica B 320, 316 (2002).

A. Fainstein, C. A. Ramos, R. G. Pregliasco, A. Butera, H. J. Trodahl, G. V. M. Williams and J. L. Tallon “Interplay of Structure and Magnetism in Ruthenocuprate: A Raman Scattering and Dilatometry Study”, Physica B 320, 322 (2002).

J. L. Tallon, J. W. Loram and G. V. M. Williams, “Comment on “Spinless Impurities in High-Tc Cuprates: Kondo-like Behavior”, Phys. Rev. Lett. 88, 059701 (2002).

G. V. M. Williams, L. –Y. Jang and R. S. Lui, “The Ru Valence in RuSr₂Gd_2-xCe_xCu₂O_10+δ as Measured by X-Ray Absorption Near Edge Spectroscopy” Phys. Rev. B 65, 064508 (2002).

S. Krämer and G. V. M. Williams, “Oxygen NMR Study of RuSr₂EuCu₂O₈”, Physica C 377, 282 (2002).

G. V. M. Williams, S. Krämer, R. Dupree, A. Howes, H. J. Trodahl, C. U. Jung, Min-Seok Park and Sung-Ik Lee, “Gap Anisotropy, Spin Fluctuations and Normal-State Properties of the Electron-Doped Superconductor, Sr_0.9La_0.1CuO₂”, Phys. Rev. B 65, 224520 (2002).

M. Požek, A. Dulčić, D. Paar, A. Hamzić, M. Basletić, E. Tafra, G. V. M. Williams and S. Krämer, “The Role of CuO₂ and RuO₂ planes in Superconducting and Magnetic, RuSr₂GdCu₂O₈” Phys. Rev. B 65, 174514 (2002).

A. Fainstein, R. G. Pregliasco, G. V. M. Williams and H. J. Trodahl, “Raman Scattering Study of RuSr₂Ru_2-xCe_xCu₂O_10+δ”, Phys. Rev. B 65, 184517 (2002).

A. Dulčić, D. Paar, M. Požek, G. V. M. Williams, S. Krämer, C. U. Jung, Min-Seok Park, Sung-Ik Lee, “A Magnetization and Microwave Study of Superconducting MgB₂”, Phys. Rev. B 66, 014505 (2002).

S. Schweizer, M. Secu, J. M. Spaeth, A. Edgar and G. V. M. Williams, “Development of New X-ray Storage Phosphors”, Radiation Effects and Defects in Solids 157, 895 (2002).

G. V. M. Williams, A. Edgar, J. M. Spaeth, S. Schweizer, M. Secu and U. Rieser, “Glass-Ceramic Based X-ray Storage Phosphors”, Proceedings of the AIP 15th Bienial Congress 2002 (ISBN- 0-9598064-4-X), pp286.

D. M. Pooke and G. V. M. Williams, “Oxygen Loading in (Bi,Pb)-1222 and 2223 Materials”, Physica C 354, 396 (2001).

G. V. M. Williams, S. Krämer and M. Mehring, “An NQR Study of Overdoped Y_1-xCa_xBa₂Cu₃O_7-δ” Phys. Rev. B 63, 104514 (2001).

M. Požek, A. Dulčić, D. Paar, G. V. M. Williams, and S. Krämer, “A Transport and Microwave Study of Superconducting and Magnetic RuSr₂EuCu₂O₈” Phys. Rev. B 64, 064508 (2001).

G. V. M. Williams and M. Ryan, “A Raman, Transport and Magnetization Study of Superconducting and Magnetic RuGd_2-xCe_xSr₂Cu₂O_10+d” Phys. Rev. B 64, 094515 (2001).

A. Edgar, M. Secu, G. Williams, S. Schweizer, and J. –M. Spaeth, “Structural Phase Changes in Barium Bromide Crystals in a Fluorobromozirconate Glass-Ceramic X-ray Storage Phosphor” J. Phys.: Condens. Matter 13 No 28 (16 July 2001) 6259-6269.

G. V. M. Williams and S. Krämer, “Localised Behaviour near the Zn Impurity in YBa₂Cu₄O₈ as Measured by Nuclear Quadrupole Resonance” Phys. Rev. B 64, 104506 (2001).

T. Fehér, A. Jánossy, G. Oszlányi, F. Simon, B. Dabrowski, P. Klamut, M. Horvatić and G. V. M. Williams, “Reply to Comment on “Magnetic Field Induced Low-Energy Spin Excitations in YBa₂Cu₄O₈ Measured by High Field Gd³⁺ ESR””, Phys. Rev. Lett. 87, 209702 (2001).

G. V. M. Williams, J. L. Tallon and R. Dupree, "NMR Study of Magnetic and Non-Magnetic Impurities in YBa₂Cu₄O₈", Phys. Rev. B 61, 4319 (2000).

R. Michalak, G. V. M. Williams, J. L. Tallon and R. Dupree, "NMR and NQR Studies of Impurities in High Temperature Superconducting Cuprates", Physica B 281-282, 912 (2000).

J. L. Tallon, G. V. M. Williams and J. W. Loram, “Factors Affecting the Optimal Design of High-Tc Superconductors – The Pseudogap and Critical Doping”, Physica C 338, 9 (2000).

J. L. Tallon, J. W. Loram, G. V. M. Williams and C. Bernhard, "Heat Capacity and Transport Studies of the Ferromagnetic Superconductor RuSr₂GdCu₂O₈" , Phys. Rev. B. 61, R6471 (2000).

J. L. Tallon and G. V. M. Williams, “Comment on “Structural and Superconducting Properties of R_1-xCa_xBa₂Cu₃O_7-δ with 0.50£x£0.00”’, Phys. Rev. B 61, 9820 (2000).

G. V. M. Williams, D. J. Pringle and J. L. Tallon, “Contrasting Oxygen and Copper Isotope Effects in the YBa2Cu₄O₈ Superconducting and Normal States”, Phys. Rev. B 61, R9257 (2000).

G. V. M. Williams, D. M. Pooke, D. J. Pringle, H. J. Trodahl, J. L. Tallon, J. Quilty, N. Malde, J. Driscoll, A. Crossley and L. Cohen, "A Raman Study of Bi_2-xPb_xSr₂Ca_n-1Cu_nO_4+2n+δ, n=2 and n=3, Superconductors.", Phys. Rev. B 62, 1379 (2000).

G. V. M. Williams and S. Krämer, “A Magnetisation Study of RuSr₂EuCu₂O₈”, Phys. Rev. B 62, 4132 (2000).

G. V. M. Williams, J. L. Tallon and D. M. Pooke "A Thermopower and Irreversibility Field Study of Bi_2-xPb_xSr₂CaCu₃O_10+δ High Temperature Superconducting Cuprates", Phys. Rev. B 62, 9132 (2000).

D. Pringle, G. V. M. Williams and J. L. Tallon, "The Effect of Doping and Impurities on the Oxygen Isotope Effect in High Temperature Superconducting Cuprates", Phys. Rev. B 62, 12527 (2000).

T. Fehér, A. Jánossy, G. Oszlányi, F. Simon, B. Dabrowski, P. Klamut, M. Horvatić and G. V. M. Williams, “Magnetic Field Induced Low-Energy Spin Excitations in YBa₂Cu₄O₈ Measured by High Field Gd³⁺ ESR” Phys. Rev. Lett. 85, 5627 (2000).

1988-1999

G. V. M. Williams and J. L. Tallon, "Comment on: Thermal Conductivity of YBa₂(Cu_1-xZn_x)₃O_7-δ: Relation between x and δ", Phys. Rev. B 59, 3911 (1999).

J. L. Tallon and G. V. M. Williams, "Comment on "Pseudogap Precursor of the Superconducting Gap in Under- and Overdoped Bi₂Sr₂CaCu₂O_8+δ", Phys. Rev. Lett. 82, 3725 (1999).

G. V. M. Williams, “NMR Studies of the Normal-State Pseudogap in High Temperature Superconducting Cuprates”, in “Studies of High Temperature Superconductors Vol 27” (Nova Science Publishers, New York, 1999), pp113.

G. V. M. Williams, R. Dupree and J. L. Tallon, "NQR Study of Magnetic and Non-Magnetic Impurities in YBa₂Cu₄O₈", Phys. Rev. B 60, 1360 (1999).

J. L. Tallon, J. W. Loram, G. V. M. Williams, J. R. Cooper, I. R. Fisher, and C. Bernhard, "Critical Doping in Overdoped High Tc Superconductors - a Quantum Critical Point?", Physica Status Solidi (b) 215, 531 (1999).

D. M. Pooke, G. V. M. Williams, J. L. Tallon and H. J. Trodahl, "Systematics and Optimization of Hole Doping in Bi2223", J. Low Temperature Physics 117, 831 (1999).

G. V. M. Williams, E. M. Haines and J. L. Tallon, "Pair-Breaking in the Presence of a Normal-State Pseudogap in HTS Cuprates", Phys. Rev. B 57, 146 (1998).

G. V. M. Williams, J. L. Tallon, J. Quility, H. J. Trodahl and N. E. Flower, "Absence of an Isotope Effect in the YBa₂Cu₄O₈ Pseudogap as determined by 89Y NMR", Phys. Rev. Lett. 80, 377 (1998).

C. Bernhard, J. L. Tallon, C. Bucci, R. DeRenzi, G. Guidi, G. V. M. Williams and Ch. Niedermayer, "Comment on Muon Spin Relaxation Studies of Zn-Substitution Effects in High-Tc Cuprate Superconductors", Phys. Rev. Lett. 80, 205 (1998).

G. V. M. Williams, J. L. Tallon, R. Michalak and R. Dupree, "NMR Studies of Overdoped Y_1-xCa_xBa₂Cu₃O_7-δ", Phys. Rev. B 57, 8696 (1998).

G. V. M. Williams and J. L. Tallon, “89Y NMR Study of the Effects of Impurities On and Between the CuO₂ Planes in High Temperature Superconducting Cuprates", Phys. Rev. B 57, 10984 (1998).

C. Bernhard, Ch. Niedermayer, Th. Blasius, G. V. M. Williams, R. De Renzi, C. Bucci and J. L. Tallon, "A Muon Spin Rotation Study of Zn- and Ni-Impurity Related Magnetic Moments in Cuprate High-Tc Superconductors", Phys. Rev. B 58, 8937 (1998).

G. V. M. Williams, J. L. Tallon and J. W. Loram, "Crossover Temperatures in the Normal-State Phase Diagram of High-Tc Superconductors", Phys. Rev B 58, 15053 (1998).

J. L. Tallon, G. V. M. Williams and J. W. Loram, "NMR Studies on HTS Cuprates: Re-accessing the Models", J. Phys. Chem. Solids 59, 2145 (1998).

G. V. M. Williams, J. L. Tallon, E. H. Haines, R. Michalak and R. Dupree, "NMR Evidence for a d-Wave Normal-State Pseudogap", Phys. Rev. Lett. 78, 721 (1997).

J. L. Tallon, G. V. M. Williams, N. E. Flower and C. Bernhard, "Phase Separation, Pseudogap and Impurity Scattering in HTS Cuprates", Physica C 282-287, 236 (1997).

Ch. Niedermayer, C. Bernhard, J. L. Tallon, G. V. M. Williams, J. I. Budnick, E. J. Ansaldo, C. E. Stonach, D. R. Noakes, C. Bucci, R. Derenzi and G. Guigi, "A Muon-Spin-Rotation Study of the Superconducting Condensate Density in High-Temperature Superconductors", Hyperfine Interactions 105, 139 (1997).

A. Janossy, T. Fehir, G. Oszlanyi and G. V. M. Williams, "Linear Low Temperature Spin Susceptibility in the Underdoped High Tc Superconductor Gd:YBa₂Cu₄O₈", Phys. Rev. Lett. 79, 2726 (1997).

J. L. Tallon, C. Bernhard, G. V. M. Williams and J. W. Loram, "Zn-Induced Tc Reduction in the HTS Cuprates - Scattering in the Presence of a Pseudogap", Phys. Rev. Lett. 79, 5294 (1997).

G. V. M. Williams and J. L. Tallon, "Ion Size Effects on Tc and the Interplanar Coupling in RBa₂Cu₃O_7-δ", Physica C 258, 41 (1996).

G. V. M. Williams, M. Staines and R. H. Meinhold, "NMR and Transport Studies of Y₂Ba₄Cu₇O_15-δ having Different Tc Values From Different Synthesis Conditions", Physica C 258, 273 (1996).

J. L. Tallon, G. V. M. Williams, C. Bernhard, D. M. Pooke, M. P. Staines, J. D. Johnson and R. H. Meinhold, "Interplanar Coupling, Induced Superconductivity and van Hove Singularity in High-Tc Cuprates", Phys. Rev. B 53, R11972 (1996).

C. Bernhard, J. L. Tallon, C. Bucci, R. De Renzi, G. Guidi, G. V. M. Williams and Ch. Niedermayer, "Suppression of the superconducting condensate in the high-Tc cuprates by Zn substitution and overdoping-evidence for an unconventional pairing state", Phys. Rev. Lett. 77, 2304 (1996).

G. V. M. Williams, J. L. Tallon, R. Dupree and R. Michalak, "Transport and NMR Studies of the effect of Ni Substitution on Superconductivity and the Normal-State pseudogap in YBa₂Cu₄O₈'", Phys. Rev. B 54, 9532(1996).

G. V. M. Williams, J. L. Tallon, R. Dupree and R. Michalak, "NMR Evidence for Common Superconducting and Phase Diagrams of YBa2Cu3O7-_δ and La_2-xSr_xCaCu₂O₆", Phys. Rev. B 54, 6909R(1996).

J. L. Tallon, J. R. Cooper, P. S. I. P. N. de Silva, G. V. M. Williams and J. W. Loram, "Reply to comment on: Thermoelectric Power: A Simple, Instructive Probe of High-Tc Superconductors", Phys. Rev. Lett. 77, 1191 (1996).

A. Janossy, L. C. Brunel, G. V. M. Williams, J. R. Cooper and W. Y. Liang, "Spin Susceptibility of High Tc Superconductors Probed by High Field Gd³⁺ ESR", Physical Phenomena at High Magnetic Fields - II, National High Magnetic Field Laboratory, Tallahassee, Florida, May 6-9, 1995, 525-530 (World Scientific, Singapore, 1996).

J. L. Tallon, C. Bernhard, U. Binninger, A. Hofer, G. V. M. Williams, E. J. Ansaldo, J. I. Budnick and Ch. Niedermayer. "In-Plane Anisotropy of the Penetration Depth Due to Superconductivity on the Cu-O Chains in YBa₂Cu₃O_7-δ, Y₂Ba₄Cu₇O_15-δ and YBa₂Cu₄O₈", Phys. Rev. Lett. 74, 1008 (1995).

G. V. M. Williams, J. L. Tallon, R. Meinhold and A. Janossy, "An 89Y NMR Study of the Effect of Zn Substitution on the Spin Dynamics of YBa₂Cu₄O₈", Phys. Rev. B 51, 16503 (1995).

J. L. Tallon, J. R. Cooper, P. S. I. P. N. de Silva, G. V. M. Williams and J. W. Loram, "Thermoelectric Power: A Simple, Instructive Probe of High-Tc Superconductors", Phys. Rev. Lett. 75, 4414 (1995).

G. V. M. Williams, J. L. Tallon and R. H. Meinhold, "An 89Y Study of Zn Induced Local Moments and Pair-Breaking in Y(Ba_1-yLa_y)₂(Cu_1-xZn_x)₄O₈", Phys. Rev. B. 52, R7034 (1995).

J. L. Tallon, C. Bernhard and G. V. M. Williams, "Giant Enhancement in HTS Properties by Induced Superconductivity", 1995 International Workshop on Superconductivity, Controlled Processing of High-Temperature Superconductors: Fundamentals and Applications, 18-21 June, 1995, Maui, USA. 471-472 (International Superconductivity Technology Center, Tokyo, Japan, 1995).

C. Bernhard, Ch. Niedermayer, U. Binninger, A. Hofer, Ch. Wenger, J. L. Tallon, G. V. M. Williams, E. J. Ansaldo, J. I. Budnick, C. E. Stronach, D. R. Noakes and M. A. Blankson-Mills, "Magnetic Penetration Depth and Condensate Density of Cuprate High-Tc Superconductors determined by Muon-Spin-Rotation Experiments", Phy. Rev. B. 52, 10488 (1995).

G. V. M. Williams, C. C. Phillips and K. Woodbridge, "Time Resolved DFWM, Excite/Probe and Transient Grating Studies of In_xGa_1-xAs/GaAs Superlattices", Semiconducting Science and Technology 9, 1096 (1994).

C. Bernhard, Ch. Niedermayer, U. Binninger, A. Hofer, J. L. Tallon, G. V. M. Williams, E. J. Ansaldo and J. L. Butnick, "Doping Dependence of the Magnetic Penetration Depth in Yb_1-xCa_xBa_1.6Sr_0.4Cu₃O_7-δ Studied by Muon-Spin-Rotation.", Physica C 226, 250 (1994).

J. L. Tallon, G. V. M. Williams, M. P. Staines and C. Bernhard, "Energy and Length Scales in the Superconducting Phase Diagram for HTSC Cuprates", Physica C 235-240, 1821 (1994).

G. V. M. Williams, C. C. Phillips and K. Woodbridge, "Exciton Dephasing, Pump/Probe and Transient Grating Studies of In_xGa_1-xAs/GaAs Strained Layer Quantum Heterostructures", 21st International Conference on the Physics of Semiconductors, Beijing, 1992. 1124 (World Scientific, 1992).

J. L. Tallon and G. V. M. Williams, "Planes, Chains and Ribbons - Charge Distribution in Superconducting Cuprates", J. Less-Common Met. 164 & 165, 70 (1991).

R. G. Buckley, D. M. Pooke, M. R. Presland, N. E. Flower, M. P. Stains, H. L. Johnson, M. Meglan, G. V. M. Williams and M. Bowden, "Ca- and La- substitution in YBa₂Cu₃O_7-δ, Y₂Ba₄Cu₇O_15-δ and YBa₂Cu₄O₈", Physica C 174, 383 (1991).

G. V. M. Williams, "The Electrical Properties of a-Ge/a-SiO Superlattices", J. Appl. Phys. 70, 901 (1991).

G. V. M. Williams, A. Bittar and H. J. Trodahl, "Crystallisation and Diffusion in Progressively Annealed a-Ge/a-SiO_x Superlattices", J. Appl. Phys. 67, 1874 (1990).

A. Bittar, G. V. M. Williams and H. J. Trodahl, "Optical Absorption and Electrical Conductivity in Amorphous Ge/SiO_x Superlattices", Physica A 157, 411 (1989).

H. J. Trodahl, P. V. Santos, G. V. M. Williams and A. Bittar, "Raman Scattering from Surface and Bulk Acoustic Phonons in Capped Superlattices", Phys. Rev. B 40, 8577 (1989).

G. V. M. Williams, H. J. Trodahl and R. H. March, "Simple Photographic method for X-ray Characterisation of Superlattices", J. Appl. Phys. E 21, 601 (1988).

G. V. M. Williams, A. Bittar and H. J. Trodahl, "Raman Spectroscopy of Amorphous Ge/SiO_x Superlattices", J. Appl. Phys. 64, 5148 (1988). Patents

[1] Christian Josef Dotzler, Andrew Edgar, Grant Victor McLelland Williams, “Fluoroperovskite radiation dosimeters and storage phosphors” (provisional patent application in the USA, AJ Park reference 564401 DDG, filed 5 July 2007. US filing number 60/929,626). Pub. No. US2010/0200741 A1, 12 Aug, 2010. See http://www.freepatentsonline.com/y2010/0200741.html

[2] Grant Williams, “Radiation dosimeter detection system and methods”, New Zealand Provisional Patent Application No. 588050, filed 17 September 2010.

Industry reports

[1] G. V. M. Williams and T Robinson, “Background, requirements and recommendations for making magneto-optical imaging plates at IRL”, prepared for MPT/Quest, October 2006.

[2] G. V. M. Williams, “Magnetic sensors technology review”, Prepared for the New Zealand Magnetic Sensors Reference Group, September 2010.

[3] G. V. M. Williams and S. Chong, “Report on the magnetoresistance measurements on GNS materials for magnetic sensor applications for Group3”, PSAF project between IRL and Group3. March 2011.

[4] S. Granville, S. Chong, and G. Williams, confidential report for QI2, April 2011.

[5] S. Chong and G. Williams, confidential report for Group3, April 2011.